CN115533177A - Centrally-positioned metal processing cutter - Google Patents
Centrally-positioned metal processing cutter Download PDFInfo
- Publication number
- CN115533177A CN115533177A CN202211472371.0A CN202211472371A CN115533177A CN 115533177 A CN115533177 A CN 115533177A CN 202211472371 A CN202211472371 A CN 202211472371A CN 115533177 A CN115533177 A CN 115533177A
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- China
- Prior art keywords
- hole
- cylindrical
- hard alloy
- threaded
- centrally located
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/02—Connections between the shanks and detachable cutting heads
Abstract
The invention relates to the technical field of metal processing cutters, in particular to a centrally positioned metal processing cutter which comprises a cutter bar, a hard alloy cutter head and a fixing bolt, wherein the cutter bar is fixedly connected with the cutter bar; the cutter bar is provided with a fixing groove; the fixing groove is composed of a cylindrical hole and a threaded hole which are coaxially arranged; the hard alloy tool bit is provided with a through hole; the through hole and the cylindrical hole are coaxially arranged; the fixing bolt comprises a cylindrical part and a threaded part which are coaxially arranged; the cylindrical part is arranged between the cylindrical hole and the through hole; the thread part is in threaded connection with the threaded hole. According to the invention, the threaded hole, the cylindrical hole and the through hole are coaxially arranged, and the threaded part and the cylindrical part are coaxially arranged, so that the cylindrical hole plays a role of central positioning for the cylindrical part of the fixing bolt, thereby effectively preventing the hard alloy tool bit and the tool bar from shifting, improving the processing precision and efficiency, and greatly saving the cost of the tool through a connection mode of the hard alloy tool bit and the tool bar.
Description
Technical Field
The invention relates to the technical field of metal processing cutters, in particular to a centrally positioned metal processing cutter.
Background
In machining, it is common to drive a tool in rotation by a machine tool to machine a workpiece, for example, by turning, milling, grinding, etc. with the machine tool. The tool is used as an indispensable tool for machining, and the common material is mainly hard alloy, wherein the integral hard alloy tool is required in the field of high-precision machining. The cutter is a consumable product, the whole hard alloy is used, although the precision is good, the cost is high, in order to save the processing cost, a mode that the cutter bar and the cutter head can be linked is usually adopted, the cutter bar and the cutter head are generally arranged into a detachable structure, and only the cutter head participating in processing needs to be replaced in the processing, so that certain cost is saved. But traditional mode passes behind the tool bit by the bolt and carries out threaded connection with the cutter arbor, and threaded connection's in-process appears connecting the condition not in place easily to lead to cutter arbor and tool bit to produce the skew, the cutter is beated too greatly in the course of working, though the cost is practiced thrift to a certain extent but the precision is relatively poor, thereby can't replace whole alloy cutter to satisfy the processing of high-accuracy work piece.
Disclosure of Invention
The invention aims to provide a centrally-positioned metal processing cutter aiming at the defects in the prior art, so that the cutter is stable and reliable in structure, the processing precision and the service life of the cutter are effectively improved, the cutter can be used in place of an integral alloy cutter, the processing precision of a high-precision workpiece can be met, and the processing cost is saved.
The purpose of the invention is realized by the following technical scheme: a centrally positioned metal processing cutter comprises a cutter bar, a hard alloy cutter head and a fixing bolt; the hard alloy cutter head is detachably connected with the cutter bar through a fixing bolt;
the bottom of the cutter bar is provided with a fixing groove; the fixing groove consists of a cylindrical hole and a threaded hole; the threaded hole is formed in the top of the cylindrical hole; the cylindrical hole and the threaded hole are coaxially arranged; a through hole is arranged in the middle of the hard alloy cutter head in a penetrating manner; the through hole and the cylindrical hole are coaxially arranged;
the fixing bolt comprises a cylindrical part matched with the cylindrical hole and a threaded part connected with the cylindrical part; the cylindrical part and the threaded part are coaxially arranged; the cylindrical part is arranged between the cylindrical hole and the through hole; the threaded portion is in threaded connection with the threaded hole.
The invention is further provided that one end of the cylindrical part far away from the thread part is provided with a head part; the hard alloy cutter head is provided with a limiting cavity communicated with the through hole; the head is arranged in the limiting cavity.
The invention is further provided that the bottom end of the head is provided with a rotating groove; the rotating groove is provided with an arc block.
The invention is further provided that the bottom of the cutter bar is provided with a plurality of limiting grooves; and a plurality of limiting blocks matched with the limiting grooves are arranged at the top of the hard alloy cutter head.
The invention is further provided that the cross-sectional shapes of the limiting groove and the limiting block are both arc trapezoids.
The invention is further provided with a plurality of limiting grooves which are rotationally and symmetrically arranged along the center of the cutter bar; the limiting blocks are arranged along the center of the hard alloy cutter head in a rotational symmetry mode.
The invention is further arranged that the angles of two adjacent limiting grooves are the same.
The invention is further provided that the angles of two adjacent limiting blocks are the same.
The invention further provides that a plurality of blades are arranged on the periphery of the hard alloy cutter head; the plurality of blades are rotationally and symmetrically arranged along the center of the hard alloy cutter head; an arc-shaped groove is arranged between every two adjacent blades.
The invention has the beneficial effects that: according to the invention, the threaded hole and the cylindrical hole are simultaneously arranged, the threaded hole, the cylindrical hole and the through hole are arranged coaxially, in addition, the threaded part and the cylindrical part are arranged coaxially, and the cylindrical hole plays a role in central positioning for the cylindrical part of the fixing bolt, so that the hard alloy tool bit and the tool bar can be effectively prevented from being deviated, the workpiece is damaged, the processing precision and efficiency are improved, and the cost of the tool is greatly saved through the connection mode of the hard alloy tool bit and the tool bar.
Drawings
The invention is further described with the aid of the accompanying drawings, in which the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, without inventive effort, further drawings may be derived from the following figures.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is an exploded view of the present invention from another perspective;
FIG. 4 is a cross-sectional view of the present invention;
FIG. 5 is a cross-sectional view of the present invention with the anchor bolts hidden;
wherein: 1. a cutter bar; 11. a cylindrical bore; 12. a threaded hole; 2. a cemented carbide tip; 21. perforating; 22. a limiting cavity; 31. a cylindrical portion; 32. a threaded portion; 33. a head portion; 4. a rotating tank; 41. an arc block; 51. a limiting groove; 52. a limiting block; 6. a blade; 61. an arc-shaped groove.
Detailed Description
The invention is further described in connection with the following examples.
As can be seen from fig. 1 to 5, the centrally located metal processing tool according to the present embodiment includes a tool holder 1, a cemented carbide insert 2, and a fixing bolt; the hard alloy tool bit 2 is detachably connected with the tool bar 1 through a fixing bolt;
the bottom of the cutter bar 1 is provided with a fixing groove; the fixing groove consists of a cylindrical hole 11 and a threaded hole 12; the threaded hole 12 is formed in the top of the cylindrical hole 11; the cylindrical hole 11 and the threaded hole 12 are coaxially arranged; the middle part of the hard alloy cutter head 2 is provided with a through hole 21 in a penetrating way; the through hole 21 and the cylindrical hole 11 are coaxially arranged;
the fixing bolt comprises a cylindrical part 31 matched with the cylindrical hole 11 and a thread part 32 connected with the cylindrical part 31; the cylindrical portion 31 is arranged coaxially with the threaded portion 32; the cylindrical part 31 is arranged between the cylindrical hole 11 and the through hole 21; the threaded portion 32 is threadedly coupled to the threaded bore.
Specifically, in the centrally-located metal processing tool according to the present embodiment, during installation, the threaded portion 32 of the fixing bolt firstly passes through the through hole 21 of the cemented carbide insert 2 and enters the fixing groove of the tool holder 1, and passes through the cylindrical hole 11 and then is in threaded connection with the threaded hole 12, during the process of threaded connection between the threaded portion 32 and the threaded hole 12, the cylindrical portion 31 of the fixing bolt enters the cylindrical hole 11, and after the threaded portion 32 is connected with the threaded hole 12, the cylindrical portion 31 is located between the cylindrical hole 11 and the through hole 21, so as to fix the tool holder 1 and the cemented carbide insert 2; and this embodiment is through setting up screw hole 12 and cylinder hole 11 simultaneously, screw hole 12, cylinder hole 11 and perforation 21 set up with the axle center, in addition through setting up screw thread portion 32 and cylinder portion 31, screw thread portion 32 sets up with the axle center with cylinder portion 31, cylinder hole 11 plays the effect of central point to fixing bolt's cylinder portion 31, thereby can prevent effectively that the skew from taking place between carbide tool bit 2 and the cutter arbor 1, thereby cause the condition of destruction to the work piece, machining precision and efficiency have been promoted, and the great saving the cost of cutter through the connected mode of carbide tool bit plus cutter arbor.
In the centrally-positioned metal processing tool according to the embodiment, a head portion 33 is arranged at one end of the cylindrical portion 31 away from the threaded portion 32; the hard alloy cutter head 2 is provided with a limiting cavity 22 communicated with the through hole 21; the head 33 is arranged in the limiting cavity 22. Through the arrangement, the position of the bolt can be limited, and the bolt is prevented from being excessively rotated, so that the hard alloy cutter head 2 and the cutter bar 1 are prevented from being damaged.
In the centrally-positioned metal processing tool of the present embodiment, the bottom end of the head portion 33 is provided with a rotating groove 4; the rotating groove 4 is provided with an arc block 41. Through the setting, the bolt can be conveniently rotated, and the arc block 41 is limited and prevented from being damaged.
In the centrally-positioned metal processing tool of the present embodiment, the bottom of the tool bar 1 is provided with a plurality of limiting grooves 51; the top of the hard alloy cutter head 2 is provided with a plurality of limiting blocks 52 matched with the limiting grooves 51. Through the arrangement, the relative rotation between the hard alloy cutter head 2 and the cutter bar 1 can be prevented.
In the centrally-located metal processing tool of this embodiment, the cross-sectional shapes of the limiting groove 51 and the limiting block 52 are both arc trapezoids. Can strengthen the spacing effect between carbide tool bit 2 and the cutter arbor 1 through above-mentioned setting, further prevent to take place relative rotation between carbide tool bit 2 and the cutter arbor 1.
In the centrally located metal processing tool of the present embodiment, a plurality of limiting grooves 51 are rotationally and symmetrically arranged along the center of the tool bar 1; the plurality of stoppers 52 are rotationally symmetrically arranged along the center of the cemented carbide tip 2. Can strengthen the spacing effect between carbide tool bit 2 and the cutter arbor 1 through above-mentioned setting, further prevent to take place relative rotation between carbide tool bit 2 and the cutter arbor 1.
In the centrally located metal processing tool according to this embodiment, the angles of the two adjacent limiting grooves 51 are the same. Can strengthen the spacing effect between carbide tool bit 2 and the cutter arbor 1 through above-mentioned setting, further prevent to take place relative rotation between carbide tool bit 2 and the cutter arbor 1.
In the centrally located metal processing tool according to this embodiment, the angles of the two adjacent limiting blocks 52 are the same. Can strengthen the spacing effect between carbide tool bit 2 and the cutter arbor 1 through above-mentioned setting, further prevent to take place relative rotation between carbide tool bit 2 and the cutter arbor 1.
In the centrally-positioned metal processing tool according to the embodiment, a plurality of blades 6 are arranged on the periphery of the cemented carbide tool bit 2; the plurality of blades 6 are arranged along the center of the hard alloy cutter head 2 in a rotational symmetry manner; an arc-shaped groove 61 is arranged between two adjacent blades 6. Through the arrangement, the hard alloy cutter head 2 can smoothly and flatly process a product workpiece.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A centrally located metalworking tool, comprising: comprises a cutter bar (1), a hard alloy cutter head (2) and a fixing bolt; the hard alloy cutter head (2) is detachably connected with the cutter bar (1) through a fixing bolt;
the bottom of the cutter bar (1) is provided with a fixing groove; the fixing groove consists of a cylindrical hole (11) and a threaded hole (12); the threaded hole (12) is formed in the top of the cylindrical hole (11); the cylindrical hole (11) and the threaded hole (12) are coaxially arranged; a through hole (21) penetrates through the middle part of the hard alloy cutter head (2); the through hole (21) and the cylindrical hole (11) are coaxially arranged;
the fixing bolt comprises a cylindrical part (31) matched with the cylindrical hole (11) and a threaded part (32) connected with the cylindrical part (31); the cylindrical part (31) and the threaded part (32) are coaxially arranged; the cylindrical part (31) is arranged between the cylindrical hole (11) and the through hole (21); the thread part (32) is in threaded connection with the threaded hole (12).
2. The centrally located metal working tool of claim 1, wherein: a head part (33) is arranged at one end of the cylindrical part (31) far away from the thread part (32); the hard alloy cutter head (2) is provided with a limiting cavity (22) communicated with the through hole (21); the head (33) is arranged in the limit cavity (22).
3. A centrally located metal working tool according to claim 2, wherein: a rotating groove (4) is formed in the bottom end of the head (33); the rotating groove (4) is provided with an arc block (41).
4. The centrally located metal working tool of claim 1, wherein: the bottom of the cutter bar (1) is provided with a plurality of limiting grooves (51); the top of carbide tool bit (2) is equipped with a plurality of stopper (52) with spacing groove (51) complex.
5. The centrally located metal working tool of claim 4, wherein: the cross-sectional shapes of the limiting groove (51) and the limiting block (52) are both arc trapezoids.
6. The centrally located metal working tool of claim 4, wherein: the limiting grooves (51) are rotationally and symmetrically arranged along the center of the cutter bar (1); the limiting blocks (52) are arranged in a rotational symmetry mode along the center of the hard alloy cutter head (2).
7. The centrally located metal working tool of claim 6, wherein: the angles of the two adjacent limiting grooves (51) are the same.
8. The centrally located metal working tool of claim 6, wherein: the angles of the two adjacent limiting blocks (52) are the same.
9. A centrally located metal working tool according to claim 1, wherein: a plurality of blades (6) are arranged on the periphery of the hard alloy cutter head (2); the plurality of blades (6) are arranged along the center of the hard alloy cutter head (2) in a rotational symmetry manner; an arc-shaped groove (61) is arranged between two adjacent blades (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211472371.0A CN115533177A (en) | 2022-11-23 | 2022-11-23 | Centrally-positioned metal processing cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211472371.0A CN115533177A (en) | 2022-11-23 | 2022-11-23 | Centrally-positioned metal processing cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115533177A true CN115533177A (en) | 2022-12-30 |
Family
ID=84721031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211472371.0A Pending CN115533177A (en) | 2022-11-23 | 2022-11-23 | Centrally-positioned metal processing cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115533177A (en) |
-
2022
- 2022-11-23 CN CN202211472371.0A patent/CN115533177A/en active Pending
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